/usr/local/bin/python -> /usr/bin/env python
diff --git a/Demo/tkinter/guido/dialog.py b/Demo/tkinter/guido/dialog.py
index 500a73d..62ad3e3 100755
--- a/Demo/tkinter/guido/dialog.py
+++ b/Demo/tkinter/guido/dialog.py
@@ -1,4 +1,4 @@
-#! /usr/local/bin/python
+#! /usr/bin/env python
 
 # A Python function that generates dialog boxes with a text message,
 # optional bitmap, and any number of buttons.